Paper-making machine



Oct. 21, 1930. 5.1. CROWSON 1,779,037 PAPER MAKING MACHINE Filed Sept. 10, 1928 2 Sheets-Sheet 1 glwventoz m v N fan am J Cron/Jom aka-Lump Oct. 21, 1930. E. J. CROWSON 1,779,087

- PAPER MAKING MACHINE Filed Sept. 10, 1928 2 Sheets-Sheqt 2 gwuwnfot fer 1mm Crow/50x1 v v w Patented Oct. 21, 1,9 30

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M A pplication fil eil September 10,1928. seri l Ni /304,926.

- This invention" relates to new and useful i improvements in paper makingniachines, and

more particularly to means forimparting translational bodily movement to a Fouridrinier Wire engaging device, whereby this wire I is continually and slowly moved from side to sidetransverselyof the paper making:

making maclnne with my? improvements ap-;= I

machine to accomplishjthe veryimportant v function of preventing the Wire from groov- 1 ing the suction'boxes and the deckle straps i from imposing excessive-wear upon-the wire.- 1

'. tic'alsection taken through the }reversing"and'* It is well known in the paper making art that the Fourdrin er wire continually runs over the same surfaces of the suction boxes;

ordinary guides and other devices'being pro vided 'to center the wire upon thef'machine,

I with the result that in avery shorttime after being place'd in use, the wire wears objectionable ridges in the suction boxes and the deckle straps wear grooves in the wire, both of which contribute to the formation ofobjectionable lines in the paper, to say nothing'of the expense involved in v continually replacing the wire and planing the surfaces of the suction boxes smooth. Itis, therefore, the principal object of this invention'toprovide'means for continually and slowly "moving the; Four drinier wire from side to side sothat the objectionable grooving ofthe suction boxes and excessive wear" placed uponthe wire'by T the decklestrapswill be eliminated whereby perfect papermay be produced without the necessity offrequent,replacements of the suc *tion boxes and Foiirdriniierwire.

ploythe usual guide rollfor the accomplish.-

' ment of these functionsvand to impartfto this roll translational bodily .movement transversely of the paper jmaking' machine by 9 means of a reversing andspeedreducing mechanism operated by the guide roll itself.

'A further'object of the invention is to provicle an automatic wire guide for engagement with an edge of the FOHI'dIlIlIGl Wire, operat 'ing in conjunction with the translational movements of the guide roll in order to maintain the wire centered with respect to the roll,

throughout theseveral views:

-Another objectof the invention is to. em-

venti'on will become apparent during the conrseofthe followingldescript-ion.1 V N In the accompanyingdra'wings forming a a part of Q the application, and wherein "like numerals are employed o designate like parts I F'gur'e-l is a top pl'an of one endjof a paperpl i er -YF v Figure 2 is aside'elevation of thesa'me, Figure 8 is an'enlarge'd longitudinal ver I Referring now more particularly to the drawings, the numeral fidesignates the usual 1 1 table of a jFourdrinier, machine supported I by" the usual frame 7, below which are ar ranged" theusualsuction boxes 8, 9, 10 and 11,.ov'er whiclrruns the nsualFourdrinier wire 12 which passes around the well known 1 type: of rotarvsucti on box 13"and over'the automatic gni de roll- 14; supported between V v the rotary suction box and'the jend ofj the 1 frame7. Otherp arts of the'well known type I of thepaperfmakingnachine are illust fated,

but asthey 'for m' no part of theipresent-in vention, a description'tl iereo'f'isdeemed un necessary. I

impart translational bodily movement to the machine, and in order to do this, both bear-" ings of the guide roll shaft 15 are' mounted for sliding movement transversely of the F'ourdrinier machine, as will now be de-' scribed. One endfo f the guide roll shaft 15f has secured theretoabeveledgear '161a'nd is journalled." in a bearing eyef17', "whichloosely mounted upon the upper end of a stub shaft 18 of a reversing mechanism -19.

to bepivoted on" a vertical axis t'o;swing in a horiz ontal plane while the reversing m'ech- "anism 19' is automatically moved: back and 1 As stated in the objects of the'invention, i the principal Object, of the invention is to forth transversely of the machine in a manner which will be presently described. It will, therefore, be obvious that one end of the guide roll shaft 15 is both slidably and pivotally supported.

The other end of the guide roll shaft is indicated by the numeral 20, see Figure 2, and is journalled in a bearing mounted upon a slide 21 of the well known type of wire guide device, and which is capable of sliding longitudinally of the Fourdrinier wire upon a stand which in the present instance, in-

stead of being rigidly connected to the frame of the paper making machine, is dove-tailed for sliding movement transversely of the Fourdrinier wire and machine in a bracket 23 secured to the frame 7. This end of the guide roll shaft is connected to the well known type of wire guide device, such as shown in the patent to Gilbert and Nash. No. 694.868 patented March 1902, and which includes a horseshoe double pawl and ratchet mechanism 24 reciprocated veticallv bv the link mechanism 25 connecting the double pawl with the sliding block 21 and the end 20 of the guide roll shaft for swinging the guide roll. 14 upon its pivot 18 whenever the Fourdrinier wire runs to one side or the other relative to the guide roll 14, in order to center the wire upon the roll in the well known manner. This automatic wire guide device also includes the well known type of double ratchet wheel 26 threaded upon a screw shaft mounted in the sliding stand 22 and connected to the block 21, and the connecting mechanism between the horse-shoe'pawl and the guide pan 2?, which engages one edge of the Fourdrinier wire as disclosed in the aforesaid patent in order that this automatic guide device will maintain the Fourdrinier wire centered with respect to its guide roll 14 whenever the wire moves relative to this roll.

The reversing mechanism which imparts translational bodily reciprocations to the guide roll transversely of the machine. is encased in a housing 28. which is dove-tailed for sliding movement transversely of the machine in a bracket 29 secured to the Fourdrinier frame, as shown in detail in Fig ure 4.' This housing consists of an open ended housing having a removable top 30 bolted to the same and having a bearing 81 for the vertical stub shaft 18 the lower end of wliichreposes in a bearing 82 formed in the bottom of the housing so as to support the stub shaft for free rotation. A beveled gear 33 is keyed to this stub shaft on top of the cover 30, and meshes with the bevelled gear 16 of the guide roll shaft for imparting rotation to the stub shaft 18. Loosely mounted upon the stub shaft in vertical spaced relation are a pair of clutch gears 34 and each of which. is provided with a clutch element 36 for alternate engagement with a double faced clutch element 87 splined upon the stub shaft 18 between the two gears 34 and 35. This clutch element 87 is alternatively moved into engagement with the clutch gears 34 and by atrip mechanism consisting of a lever 88 secured to a transverse shaft or rod 39 journalled in the sides of the housing 38, and which is oscillated by a depending trip finger 40 secured to the shaft 89 and arranged to move along the side of the stand 29 between a pair of spaced abutment elements 41 and 42 projecting horizontally from the side of the stand 29. The two clutch gears 34 and 35 are constantly in mesh with opposite sides of a bevelled gear 48 secured to one end of a sleeve 44 rotatably mounted and supported by a pair of spaced bearing stands 45. These stands are reinovably mounted within the housing 28 by reason of their being provided on their bottoms with a projecting pin 46 adapted to be received in a socket 47 in the bottom of the housing 28, while the sides of these bearing stands are provided with laterally projecting lugs 48 adapted to be arranged in vertical ways 49 provided in opposite sides of the housing 28 and resting upon abutment-s 50. These bearing stands are simply slipped downwardly into the housing with their lugs 48 moving through the grooves 49 until the pin 46 rests upon its seat in the bottom of the housing, and the lugs 48 rest upon the abutments 50.

Each of these bearing stands 45 is provided with an upwardly projecting stud 51 adapted to be received. in a socket 52 formed in the cover plate 80 to rotatably mount reduction bevelled gears 53 and 54 upon vertical axes.

his speed reducing gearing involves a single tooth or finger 55 secured to the bevelled gear 43, and meshing with the bevelled 53. It also includes a second step in speed reduction, provided for by a large bevelled pinion 56 loosely mounted upon the sleeve 44 and meshing with the bevelled gear 58. This gear 56 is provided with a single tooth or finger 57, which is in mesh with the teeth of the bevelled pinion so as to rotate the latter one tooth for every complete revolution of the gear 56.

The reversing mechanism housing 28 and guide roll 14 are given translational bodily movement by screw arrangement, including a stationary horizontal screw shaft 58 which is supported and secured at one end by an upstanding arm of the stand 29. The opposite end of the screw shaft is supported by its projection into the rotary sleeve 44. The connection between this screw shaft and the housing 28 is provided for by a bevelled gear 60'rotatably mounted upon the rotary sleeve 44 and constantly arranged in mesh with the reducing gear 54. This bevelled gear 60 is provided with a nut formation 61 which cooperates with the threads of the screw shaft 58 for moving the housing 28 back and forth.

To accomplish this, the bevelled gear" 60', While being freely rotatable independently of.

. the rotary sleeve 44, is connected therewith 3510 move the latter Whenever; the 'nu'tlfil moves longitudin'aljlyof'thescrevv shaft. 58. In operation, movementofthe Fourdrlnier Wire 12 imparts rotation to the guideroll 14 and'shaft 15,1vhich rotates the gears lfiand' I 38, and,consequently, the stub shaft 18 and double clutolrelement 3? Which is in engage'-' ment with one orthe other ofthe clutch el ments SGofthe clutch gears 84 and 35, do-

pending. upon'vvhich trip element has last enpnged the-trip lever 40,. This will cause rotation of the bevelled gear' LS and Will cause the tooth 55 0f this gear 'to'turn the bevelled gear 53 one tooth for every one revolution of the gear 13. This. in turn, Will step the speed down through the gear 56,. tooth i 57, and gear 54 to cause slow rotation of the gear 60, which having the nut formation thereon, n'iovesalong-the screw shaft 58 slowly, thereby movingthe guide'roll- 14 bodily in one directiontrausversely of the machine to carry the Fourdrinier Wire 12 sideWise with it and therebyv move this Wire transversely across the suctionboxes. When the trip lever engages its trip element 41 or 4-2, depending upon the direction of move-' 30' ment ofthe reversing mechanism, the double clutch element 37 Will be movedinto engagement with theother clutch gear to reverse the direction of rotation of the gear 43, and, consequently, the gear 60 Whichflmoves the housing 28 in the opposite direction, together with the guide roll 14. Thiscarries the" Fourdrinier' Wire in. the opposite direction transversely of the machine and across the faces of the suction boxes. Consequently, it Will be seen that the Wire is not permitted'to move'continually in one path across the suction boxes, and, accordingly, theyWill not become grooved with the detrimental eflects upon the paper being made bythe machine.

Should the Fourdrinier Wire 12 move from one side to the other relative toj the guide roll 1 1, the automatic Wire guide device 27 "will be moved one way or the other depending upon. the directionof movement of the Wire,

relative to the rolland- Will move the proper pawl into engagement With the ratchet Wheel. 26, so that this pawl .vvill rotatethe ratchet Wheel in the proper direction due to the horseshoe pawl being connected through the linkage 25 With the guide roll. thereby causingthe double ratchet Wheel 26 and block 21 to move in a direction to swing its pivot 18 to cause the Wire to moveback the guide 'roll upon to its centralized position upon the guide roll 14; As explainedin the Gilbert and Nash patent, referred to above, the automatic guide device Will check the movement of the Fourdrinier wireandmove it back to its centralized position upon the guide roll inwhichever directionthe wire may move upon the roll andas 1011 as the Fourdrinier Wire remains in its centralized position upon the guide roll 14-, the automatic Wire guide 27 Will not be called into operation. and'will not be aifected'hy the translational bodily movements of the guide roll effected through the reversing mechanism. p

it -W1ll be understood that various changes inthe size, shapelflandarrangement of parts may be resorted to Without departing from of the invention 'or the scope of the spirit the appended claims. v

v I claim:

1. A Fou-rdrinier side to side, r

side.

3. A-Fourdrinier machine having awvire guidel -oll, and means for impartingtransla-- 5.

' machine having a translationally movable device operated by the Wire, and means whereby said device by its operation continually shifts the wire from tional bodily movement to said roll to cause? lateral shifting movement'of the wire,

4. A Fourdrinier'machine havinga Wire;

guide roll, and means for imparting recipro catory translational bodll-ymovement-to said lateral shiftingmove'ment of the Wire.

' ou'rdriniejr machine having a Wire.

' guide roll mounted for. translational bodilymovement toc'ause lateral shifting movement of the Wire,'and means operated by, therlota-j v I a roll transve *sely otthe machinejto cause tion of said roll forcontinually moving'the'f same so as to shift, the Wire continually from side to side. i i f I 63A Fourdrinier machine having a Wire guide roll, means for impartingtranslational bodily movement to saidiroll andmeans to;v Y cause theLroll to swing to cause lateral shift- I 'n mentofithe ,wire relative to the guide roll.

guide roll mountedfor translational bodily movement tocause lateral shifting movement of thewire vWithsaid roll, said roll being also mounted. for swinging movement to center the Wire thereon, and meansoperated by the rotation of said roll for continually bodily moving thesameso asvto shift thewire'con-iv tinually-from side to side.

8. A Fourdrinier machinehaving. a Wire guide roll mounted for translational bodily movement to cause lateral shifting movement of the Wire 'Withsaidroll, said" roll being also mounted for swinging movement to center the ire thereon, means operated by the r0 tation of said. roll for continually bodily moving the same so as to shiftthewire cont-inually from side to side, andmeansopen ated by relative movement of the, WlIGRIld' roll. tov centerthe Wire on saidroll.

versing mechanism for bodily moving said roll.

10. A Fourdrinier machine having a wire guide roll with its bearings mounted ror sliding movement to cause translational bodily movement of said roll, and means operated by said roll for effecting bodily reciprocatory movement of said roll from side to side.

11. A Fourdrinier machine havine wire guide roll with its bearings mounted iior sliding movement to cause translational bodily movement of said roll, and a reversing mechanism operated by said roll for eitecting bodily reciprocatory movement of said roll from side to side.

12. A Fourdrinier machine having a wire guide rod with its bearings mounted for sliding movement to cause translational bodily movement of roll, a reversing mechanism operated by said roll for effecting bodily reciprocatory moven nt of said roll from side to side, and a speed red cing mechanism associated with said reversing mechanism.

13. A Fourdrinier machine having a wire guide roll with its bearings mounted for sliding movement to cause translational bodily movement of said roll, a worm, and a reversing mechanism connected to one of said sliding bearings and associated with said Worm and operated by said wire guide roll to cause reciprocation of said bearings and roll.

14. A Fourdrinier machine having a rotary and. reciprocatory shaft with a wire guide roll secured thereto, a reversing mechanism including a stationary screw shaft and a nut operable thereon, means for imparting reciprocatory movement from the nut to said roll shaft, means for alternately rotating said nut in opposite directions, and trip means for actuating said last named means.

15. A Fourdrinier machine having a rotary and reciprocatory shaft with a wire guide roll secured thereto, a reversing mechanism including a reciprocatory casing having connection with said shaft, a stub shaft mounted in said casing and driven by said roll shaft, a pair of clutch gears freely rotatable upon said stub shaft, a clutch element splined upon said stub shaft and alternately engageable with said clutch gears, a trip device connected to said clutch element, a screw gear mounted in said casing and engaging said clutch gears, and astationary screw shaft engaging said screw gear.

16. A Fourdrinier machine having a rotary and reciprocatory drive shaft with a wire guide roll secured thereto, a reversing mechanism including a shaft to which one end of said drive shaft is pivoted for effect ing translational bodily movement of said guide roll and permitting its swinging movement, and a wire guide device operatively connected to said roll shaft for swinging the same and centering said wire upon said roll.

17. A Fourdrinier machine having a rotary, reciprocatory and swinging drive shaft with a wire guide roll secured thereto, a reversing mechanism including a shaft to which one end of a drive shaft is pivoted for etlecting translational bodily movement of said guide roll, the other end of said drive shaft being slidable in two directions, and a wire guide device operatively connected to said roll shaft for sliding said end laterally and causing said roll shaft to pivot at its opposite end to center the wire upon said roll.

In testimony whereof I have hereunto set my hand.

EDXVARD J. CROVVSON. 

